Charging device and image forming apparatus
    2.
    发明授权
    Charging device and image forming apparatus 失效
    充电装置及成像装置

    公开(公告)号:US5305177A

    公开(公告)日:1994-04-19

    申请号:US786557

    申请日:1991-11-01

    IPC分类号: G03G15/02 G03G15/16 G03G15/00

    CPC分类号: G03G15/0216 G03G15/0283

    摘要: A charging device includes a charging member contactable to a member to be charged. A bias source includes an AC source and a DC source and is effective to apply a bias voltage to the charging member. The bias voltage is provided by a superposing a constant current controlled AC voltage and a constant voltage controlled DC voltage. When a DC voltage is applied between the charging member and the member to be charged, the following equation is satisfied..vertline.(applied voltage V)-(charge voltage V.sub.D of the member to be charged).vertline.=.vertline.(charge starting voltage V.sub.TH).vertline..The charge starting voltage is a DC voltage at a level which the member to be charged starts charging when only a DC voltage is applied between the member to be charged and the charging member. When the above relationship is used in the AC voltage application, the charge voltage V.sub.D oscillates in the charge region with a center of DC voltage V.sub.DC. Since the peak-to-peak voltage of the oscillating voltage required for uniform charging changes with ambient conditions, it is necessary to compensate for this change. The electric current supplied to the charging member by the oscillating component provided by the AC source is controlled to be constant. Since the charge potential of the member to be charged is determined by the DC voltage component, it is charged to a constant potential by supplying a constant DC voltage level. Therefore, the DC voltage source of the bias voltage effects a constant voltage control.

    摘要翻译: 充电装置包括可与要充电的构件接触的充电构件。 偏置源包括AC源和DC源,并且有效地向充电构件施加偏置电压。 偏置电压由叠加恒流控制的交流电压和恒定电压控制的直流电压提供。 当在充电构件和被充电构件之间施加直流电压时,满足下列等式。 /(施加电压V) - (待充电部件的充电电压VD)/ = /(充电开始电压VTH)/。 充电起始电压是在被充电部件与充电部件之间仅施加直流电压时被充电部件开始充电的水平的直流电压。 当在AC电压施加中使用上述关系时,充电电压VD在具有直流电压VDC的中心的充电区域中振荡。 由于均匀充电所需的振荡电压的峰 - 峰电压随环境条件而变化,因此有必要对此进行补偿。 通过由AC源提供的振荡部件供应给充电部件的电流被控制为恒定。 由于要充电的部件的充电电位由直流电压分量确定,所以通过提供恒定的直流电压电平将其充电到恒定电位。 因此,偏置电压的直流电压源实现恒压控制。

    Manufacturing method of semiconductor device
    4.
    发明授权
    Manufacturing method of semiconductor device 有权
    半导体器件的制造方法

    公开(公告)号:US06767782B2

    公开(公告)日:2004-07-27

    申请号:US10082311

    申请日:2002-02-26

    IPC分类号: H01L218238

    摘要: Charge-up damages to a substrate are reduced in a manufacturing process using plasma, and the reliability of a semiconductor device is improved. By forming an insulating film on the back of a substrate before a step of forming a first wiring layer, even if a plasma CVD method, a sputtering method, or a dry-etching method is used in a wiring-forming step executed later, then it is possible to suppress electric charges which are generated on the substrate and which flow to the ground potential through the substrate, and to prevent damages to the substrate due to charge-up.

    摘要翻译: 在使用等离子体的制造工艺中,对基板的充电损坏减少,并且提高了半导体器件的可靠性。通过在形成第一布线层的步骤之前在基板背面形成绝缘膜,即使 在稍后执行的布线形成步骤中使用等离子体CVD法,溅射法或干蚀刻法,则可以抑制在基板上产生的电荷,并且通过基板流向接地电位, 并防止由于充电而损坏基板。

    Wireless communication system and data storage medium
    5.
    发明授权
    Wireless communication system and data storage medium 失效
    无线通信系统和数据存储介质

    公开(公告)号:US5914980A

    公开(公告)日:1999-06-22

    申请号:US717017

    申请日:1996-09-20

    IPC分类号: G06K7/00 H04B1/707 H04B15/00

    CPC分类号: H04B1/707 G06K7/0008

    摘要: A wireless communication system performs wireless transmitting and receiving of data between first and second communication devices. The device transmits from the first communication device to the second communication device a prescribed signal by a prescribed carrier signal having a prescribed carrier frequency. The prescribed signal transmitted from the first communication device is received in the second communication device. The device generates in the second communication device a signal of prescribed frequency which is phase synchronous with the prescribed carrier signal. Transmission data is spread spectrum modulated using the signal of prescribed frequency generated in the generating step. The spread spectrum modulated signal is transmitted from the second communication device to the first communication device. The first communication device receives the spread spectrum modulated signal transmitted from the second communication device.

    摘要翻译: 无线通信系统在第一和第二通信设备之间执行数据的无线发送和接收。 设备通过具有规定载波频率的规定载波信号,从第一通信设备向第二通信设备发送规定的信号。 在第二通信设备中接收从第一通信设备发送的规定信号。 该设备在第二通信设备中产生与规定的载波信号相位同步的规定频率的信号。 使用在生成步骤中生成的规定频率的信号对发送数据进行扩频调制。 扩频调制信号从第二通信设备发送到第一通信设备。 第一通信设备接收从第二通信设备发送的扩频调制信号。

    Image processing apparatus and method for performing smoothing
processing for each of different colors
    6.
    发明授权
    Image processing apparatus and method for performing smoothing processing for each of different colors 失效
    用于对每种不同颜色进行平滑处理的图像处理装置和方法

    公开(公告)号:US5854689A

    公开(公告)日:1998-12-29

    申请号:US953750

    申请日:1997-10-17

    申请人: Tetsuo Saito

    发明人: Tetsuo Saito

    IPC分类号: H04N1/58 H04N1/10 H04N1/46

    CPC分类号: H04N1/58

    摘要: A color printer for high-quality image recording. The printer comprises printer controller 200 having image memories (video RAM's) and printer engine 300. Memory selector 2005 changes over the image memory for forming image data by color component, and outputs a color designation signal CRCD indicative of a currently-used image memory. The CRCD signal value is "00" to indicate Y image memory 2001; "01", M image memory 2002; "10", C image memory 2003; and "11", K image memory 2004. Thus the CRCD indicates the color of the current image memory. Upon smoothing, VDO signal processor 302 changes over the smoothing logic based on the CRCD signal, accordingly, an appropriate smoothing logic for each color component image data can be applied.

    摘要翻译: 彩色打印机,用于高质量的图像记录。 打印机包括具有图像存储器(视频RAM)和打印机引擎300的打印机控制器200.存储器选择器2005通过颜色分量改变用于形成图像数据的图像存储器,并输出指示当前使用的图像存储器的颜色指定信号CRCD。 CRCD信号值为“00”,表示Y图像存储器2001; “01”,M图像存储器2002; “10”,C图像存储器2003; 和“11”,K图像存储器2004.因此,CRCD指示当前图像存储器的颜色。 在平滑化之后,VDO信号处理器302基于CRCD信号改变平滑逻辑,因此,可以应用每个颜色分量图像数据的适当的平滑逻辑。

    Image smoothing using selection among plural pre-stored pixel patterns
as smoothed data
    9.
    发明授权
    Image smoothing using selection among plural pre-stored pixel patterns as smoothed data 失效
    使用多个预先存储的像素图案之间的选择作为平滑数据进行图像平滑

    公开(公告)号:US5652660A

    公开(公告)日:1997-07-29

    申请号:US430161

    申请日:1995-04-27

    摘要: Binary data (VDO) developed to a dot pattern are sequentially stored in line memories (1-9). A processing circuit (43) is constituted by a logic calculation circuit, and determines an edge portion of an image or a halftone image on the basis of 11.times.9 pixel data in shift registers (34-43). When the edge portion of an image is determined, data of a pixel of interest is converted to data that can print a smooth edge portion. Changed data (VDOM) is converted again according to the type of toner. The converted signal is supplied to a laser driver of a printer, and a printing operation is performed by scanning a laser. A resolution setting unit (1700) receives a resolution setting command from an external apparatus (1300), and sets a designated resolution in a printer (1200) according to the resolution setting command. The resolution setting unit (1700) divides one pixel into an optimal number of pixel sections on the basis of the designated resolution, and sets a logic circuit for performing optimal smoothing processing for divided data in a smoothing unit (1018). Bit map development based on code data supplied from the external apparatus (1300), and smoothing processing according to a smoothing logic, are performed.

    摘要翻译: 显影为点图案的二进制数据(VDO)被顺序存储在行存储器(1-9)中。 处理电路(43)由逻辑运算电路构成,根据移位寄存器(34-43)中的11×9像素数据,确定图像的边缘部分或半色调图像。 当确定图像的边缘部分时,感兴趣的像素的数据被转换成能够打印平滑边缘部分的数据。 更改的数据(VDOM)将根据墨粉类型再次进行转换。 转换的信号被提供给打印机的激光驱动器,并且通过扫描激光器执行打印操作。 分辨率设定单元(1700)从外部设备(1300)接收分辨率设置命令,并根据分辨率设置命令在打印机(1200)中设置指定的分辨率。 分辨率设置单元(1700)根据指定的分辨率将一个像素划分为最佳数量的像素部分,并且设置用于对平滑单元(1018)中的分割数据执行最佳平滑处理的逻辑电路。 执行基于从外部设备(1300)提供的代码数据和根据平滑逻辑的平滑处理的位图开发。